Smarts Mountain
Appalachian Trail Section #173

Located 16.5 miles from Hanover, New Hampshire

4 Stars
21,915 Steps 1  (10.0 mi)

The Appalachian Trail (Section #173) has a maximum elevation of 3,192 ft (973 m), a minimum elevation of 889 ft (271 m), and an elevation gain of 25,998 ft (7,924 m) in the [ A to B ] direction.


The following chart shows the total calories that you may expend on the Appalachian Trail Section #173 while hiking in the [ A to B ] and [ B to A ] direction at a typical speed and is based on gross weight (which includes anything carried), the topography, trail length and trail conditions.


We survey thousands of miles of trails each year. The following metrics are based on the most accurate trail data; no crowdsourced data.

[ A to B ] or [ B to A ]
Steps 1Length 2Min Ele 3Max Ele 4
21,91510.0 mi889 ft3,192 ft
[ A to B ]
Time 5Floors 6Gain 7Loss 8
4.9 hrs0.825,998 ft27,006 ft
[ B to A ]
4.0 hrs0.027,006 ft25,998 ft

What is the length of the Appalachian Trail Section #173?

The length of the Appalachian Trail Section #173 is 10.0 mi (16.2 km) or 21,915 steps.

How long does it take to hike the Appalachian Trail Section #173?

A person in good physical health can hike the Appalachian Trail Section #173 in 4.9 hrs in the [ A to B ] direction, and in 4.0 hrs in the [ B to A ] direction.

Smarts Mountain Topo Maps

Download free Smarts Mountain topo maps and the adjoining quads to plan your hike. These are full-sheet, 7.5 Minute (1:24,000 scale) topographic maps.

Adjoining 7.5 Minute Quadrangle Legend

  1. Northwest Topo Map: Fairlee, VT
  2. North Topo Map: Piermont, NH
  3. Northeast Topo Map: Warren, NH
  4. West Topo Map: Lyme, NH
  5. Topo Map: Smarts Mountain, NH
  6. East Topo Map: Wentworth, NH
  7. Southwest Topo Map: Enfield, NH
  8. South Topo Map: Canaan, NH
  9. Southeast Topo Map: Mount Cardigan, NH

Is there a Appalachian Trail map for Section #173?

Yes, and it's free! The Appalachian Trail Section #173 is located on the Smarts Mountain topo map. Use the adjoining quadrangle legend to download the map.

KML Custom Maps

AT173T.kmz is a free KML custom map of the Appalachian Trail Section #173 that you can download and view in Google Maps®, Google Earth® and Garmin® handheld GPS devices including the eTrex®, Colorado and Montana series.

Local Weather Forecast

Check the weather forecast; this weather forecast covers the Appalachian Trail Section #173, provided by the National Weather Service. (



  1. Steps is a unit of distance equal to the sum of stride lengths that vary with the terrain.
  2. Length is the distance of the trail between the two trailheads, measured on the trail.
  3. Min Ele is the minimum elevation on the trail.
  4. Max Ele is the maximum elevation on the trail.
  5. Time is the typical total time required to hike the trail.
  6. Floors is the sum of distance on the trail where angles to the horizontal is between 30 and 50 degrees (the angle of a stairway) divided by ten, the height of one floor.
  7. Gain is the cumulative elevation gain.
  8. Loss is the cumulative elevation loss.

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